Waterproofing apparatus and the like.



W.- L. WRIGHT.

WATERPROOFING APPARATUS AND THE LIKE.

APPLICATION FILED OCT. 30, 1915.

Patented @ept. 5,1915.

4 SHEETS-SHEET W. L. WRIGHT.

WATERPROOFING APPARATUS AND THE LIKE.

APPLICATION FILED OCT- 30. 1915.

Patented Sept. 5; 1916.

4 SHEETS-SHEET 2- W.L.WR1GHT. I WATERPROOFING APPARATUS AND THE LIKE. APPLICATION FILED OCT. 30. 191.5.

1,197,324. I Patent-edfiept. 5,1916.

b 4 SHEETS-SHEET 3 w. L. wmem.

WATERPROOFING APPARATUS AND THE LIKE.

APPLICATION FILED OCT. 30. 1915 Patented Sept. 5, 1916.

4 SHEETS-SHEET 4.

UNITED STATES 1 PATENT OFFICE.

WILBUR RIGHT, OEBALTIMORE, MARYLAND, ssIGNon To THE PAPER" VESSELS ooMrANY, OFBALTIMOBE, MARYLAND, A CORPORATION OF MARYLAND.

I wATEnPnoornve APrAnATus ND THE LIKE.

To all whom it may concern:

Be it known that I, WILBUR L. WRIGHT, acitizen of the United States, and resident of Baltimore, State of Maryland, haveinvented certain new and useful Improvements in and Relating to Waterproofing Apparatus and the like, of which the following is a specification.

. This invention relates to certain improvements in the art of Waterproofing. paper and like material containers; and the 7 objects and nature ofthe invention will be readily understood by those skilled in the art :in the light of the following explana- 'An object of the invention is toprovide surfaces 0 an improve'd apparatus for applying'waterproofingor other liquidto the exterior and interior surfaces-of paper and other containers and tor draining surplus liquid from such containers and for approximately drying the surfaces of the containers to which-the liquid has been applied, preparatbry to the-discharge of the waterproofed container'sjlfor further treatment or operati'ons furtherobject of the invention is to provide apparatusfor spraying-liquid on the inner and outer-surfaces of paper and the like containers and for removing surplus liquid therefrom in the process of waterproofing or other treatment of paper and other material containers. A 3 A i A further object of the invention is to provide apfparatus for spraying the interior paper or'like material container's, with waterproofing or other liquid while such containers are maintained in inverted position. I v p a A further object of they nvention 15 to provide means for spraying or approxii- T mately atomijzing" waterproofing liquid and thus producing 'a cloud oryfog of such liquid, and for passing paper containers through such fog or .cloud to thoroughly lsubj ect the interior and exterior surfacesof such. containers to the "action of suchatomized liquid. c 1

" A further object of the invention is to provide apparatus for waterproofing. paper Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed October 30, 1915. Serial No. 58,859.

A further object of the invention iscto 00 provide means for effectively waterproofing paper and like material containers without dipping ,the" same, and .without leaving irregular deposits of surplus waterproofing material on portions of thesurfaces of the containers.

A further object of the invention is to provide vmeans for simultaneously transportinga multiplicity of paper. or like material containers while said containers are being successively subjected to a waterproofing llquid, and while said containers are being drained and dried. a A further Ob ect of the invention is to provide improved means whereby paper 75 and like material containers can be unlformly and effectively waterproofed with economy and rapidity. I

A further object of the invention is to provide improvements in arrangements of 39 parts and in combinations of elements for the" production of a highly advantageous apparatus for waterproofing paper containers and parts. I

The invention consists in certain novel 35 ings: Figure 1, is a perspective view of apparatus embodying my invention. Fig. 2, a central vertical section thereof. I Fig. 3, 1s a top planithereof. Fig. 4, is adetail View- .Figt, isa vertical section somewhat dlagrammati'calrof a modified arrangement embodying :my-i-nvention.

. i In the particular embodiment of my inventlon illustrated, an approximately closed chamber is provided-over and draining into a tank ontaining'a supply qf wgte fi loo liquid. A "suitable conyeyer is arranged in said chamber,- and' thisconveyer is -.preferably constantly traveling along an extended path of movementwithin the chamber and is provided with a multiplicity of brackets, 9 holders, or supports, each adapted to carry v a single container in an inverted position so that the conveyor will be capable of 'stmul teneously carrying a large number of con"- tainerswithin said chamber and of eon- 1w discharged in said chamber drains'or drops X stantly advancing the same along said path from a point where the containers are suc-.

cessively placed on the supports to'a point where the containers are successively discharged or removed from said supports after havingtraveled the length of said path within said chamber. Near the beginning of said path "of movement means are provided to spray waterproofing liquid over the interior and exterior surfaces of the containers as said containers successively pass said meansduringthe travel of the conveyer; This liquid is drawn from the tank-and liquid back into the tank fexceptwheretaken up by the surfaces of the containers.- The con 'tainers after being subjected both .exteriorly and internally to the waterproofing liquid move along the extended pathwithin the chamber and surplus liquid isdrainedtherefrom and the liquidon or in the surfaces of the ontaine'rs" sets'or driesabefore sa-id'con suitable supporting means. -However, any. suitable means can be provided to maintain the waterproofing liquid inthetank 1 at the desired-temperature, andmy invention is not limited to the'provision of a steam coil 2,

' isv bottom opening -coinciding'-'or registering; 1"5'0 in the water: j acket 2 to ,heat thewater and 1 consequently the waterproofing material, or p to anyparticular heating means;

- :In the particular example illustrated,- show paraflin in'the tank-1, maintained in f the desired liquid condition by heat, but

invention is not'limited to. the utilization of arafiin as theuwater' oofing liquid as otherf iiqui'din ght" be ernp eyed that possesses the capacity off re nde'ring paper r; r pro ima e plied thereto! J 'Ab I, suitable box, inclosure g3 7 formed with a-I. usually contraeted 1central with'thetop opening'of the usually circulartank and'fsurrounded by an annular" or:con--;

tinuous depending neck or fiange4, "depending-into the tank and fitting the inner verti invention is not limited The annular floororbotto n wal-lfi, V casing preferably. flares upwardly" and iout- 2 wardly from the neck or flange;4:,fso1thatp cal surface of the upright 'surroundingwall; of the tank, and forming an approxn'nately tight slip jointbetweenthe upper .endof the tank and the bottomof the casing. It will, hence be 'observedthat the interior of; '7 casing forms effect-an; ar" dup l v v.

continuation "o ve equid r1 post 9, or by any other suitable means liquid dropping or flowin onto said floor, constantly tends to drain t erefrom into the tank. The surrounding vertical wall ofthe' casing rises from the outer upper edge of said fioorso that liquid will flow down the inner surface of said Wallto said floor for return to the tank.

The casing is provided With atop 6, pref erably of a conical formation so that liquid and moisture that may collect on the inner surface thereof will tend to drain therefrom to the-inner surface of said vertical wall, This top wallor cover preferably embodies one or more removable sector-shaped sections 6', provided with exterior handles 6", whereby access can be readily gained tothe interiorof the casing. Within this casing I provide a rotating table or carrier carr mg an endless series of more or less closely arranged individual supports for the articles to be waterproofed-or otherwise subjectedto 1 trally within the surrounding vertical Wall of the casing and depending loosely through a hole in the'center of the'top wallof the casmg from a top support-J8, arrangedabove,

the casing; The shaft is 'c arried'by this; sup-l shaft depends through and rota-tessupport and at its upper end is figred shaft-driving gear 10, arranged on the sup port. u-This gear isdriven by meshing gear 11, fixed to: shaft 1 12, mounted in suitable boxes carried by the support, although; any other suitable means can be provided for the liquid from the tank,fand this rotary carrier is supported and driven'by av'ertical I rotary shaft '7 arranged approximatelycen r drivingthe' rotary table. In the example illu'strated,"l,th e shaft 12, is operatively con: nected .withf and actuated by the driving ,or power shaft? 13, through the medium of a gfm'eshinggworm "andfworm' gear it, said shaftbeing @carriied. by andmounted .box 515 ,ivvhi'chalsoincloses the; worm hjeil'polw ;;can be applied to shaft ,7 iii abl' m PQ-W r in gear nner,

be i 'to ey 69 11;: 1

11.55 th -=e a P1 i il ustrated;

shaft.

for holding the articles to be waterproofed are mounted on th s rim; For-, instance,

where paper 'or like material cans, bottles, l

or otherv containers- '(such' as a) i are to be roofed both internallyand externally, ntf ag-multiplicity of arms or brackets v lil uniforinly spaced, around the t isr herefromyso -that each Ce ene q ite i ve, byTeXter-iding'upjinto" the container and, engaging? the inner surface I aha-rotar 7 table, com rises afceter hub 1-7, meal-m "the; lowerend" 10f thexshaft l7, and 'radiatin'g arms ;l-8,,f"rig-id :withan; annularlrim 19, "at" the o'uter ends'- of said arms. 1 The devices andproiee o w y of the bottom thereof so that the container depends around the bracket and rests on and is virtually suspended from the upper end thereof.

iquid spray to'theinterior of the container whe e itis, desirable containers in an inverted position and-to apply the liquid to the interiors thereof,"

, and deposit thereof on thecontainers inner t p a witlunthe casing immediately lnad'vance of surfaces. :jVarious forms and arrangements I can be provided for this purpose, v althoughlf x1 show feach bracket comprising .an upright length 20, of stifl wire or small fmetalrod' at its lower end 2l,,bent laterally-- to aj'horizon tal position and fixed to a block 22; secured,"- to the 19;? "The horizontal perso al, projects fr adia'lly from the." rim and 1 the length 20, extends upwardly therefrom 'at a slight outward angle and is preferably of a length at least equalto the inside length of the container so that the upper endof said length will engage the bottom of the container with the lower edge of the container either engaging or slightly elevated from 1 the'radial portion 21.

. .If'so desired, the upper portionof each bracket can be provided with laterallyprojecting bentwire arms 23, braced bywires 24, to engage thevertical inner surface of the container and hold the container'm the desired position and 'againstswinging or oscillating on the bracket-c ltwill be noted that thebrackets. are arrangedat an :upward outward inclination, so-. that the containers in assuming a vertical position, w ll-have their lower open ends approximatelyunob entrance of; liquid structed for the free spray from below. a R

The table rim 19, is spaced adistanc'e from the vertical surroundi ng'wall of the casing 3, and the brackets "20," are arranged to carry the containers invertical positions a and in a circular path near but spaced from the vertical wall of the casing with/their open ends over the space between said run andsaid wall andpreferablydirectly above the inclined drainage floor 5, ofthe casing so that liquid draining from the containers will drop onto said -fioor. The table is pref-. erably approximately closed betwee'n the hub 17, and rim 19-, by a floor or plate 25,

to form the floor or bottom of the waterproofing and drying chambers hereinafter referred to. y p p The casing,3, is provided with an opening, such as b, in its vertical wall, through which the operator canextend the hand'into the casing to supply containersto the rotary table by placing them on the brackets 20, as they successively move a st' said opening.

This opening I), virtua ly establishes the receiving stationfor the rotary table, or the from end tr the extended path along which the containers 7 travel in" the "casing. s The discharge station forthe rotaryconveyer 'veyer or encircle theinterior of the casing.

A container spraying chamber isp'rovided theopening b, in 'the'direction of movement 'of the rotary conveyer, and thischamher is traversed bythe" path along which the containers traveL; This chamber'in thisexample, is'fsh own} formed by the vertical parti- 'tions 01' plates radiating approximately *from the center of the casing tosthe vertical wall thereof and extending, from the top wallv of the casing" approximately ,downto a the rotary conveyer and secured to and supported from the top wall. ,The'lower-outer corners of these partitions are notched or cut away'for thepassage of the upright brackets of the conveyer and the containers carried thereby into and from said chamber. Within thisichamber I locate spraying and atomiz ing devices designed and arranged to coat or subject the complete exterior and interior surfaces of each container withor' to'the action of the liquid discharged by said dea vices so that when each container leaves said chamber it will be completely coatedorimpregnated both externally and internally with the waterproofing substance. To this end, I arrange a" downwardly discharging liquidspraying or atomizing nozzle 28, in said chamber and above the path traveled by the containers to thoroughly subject the upper ends ofthe containerswith the liquid spray; and an upwardly discharging liquid spraying or atomizing nozzle 29, below the path of the containers throughthe chamber to direct spray up into the containers and thorou hly coat or impregnate the inner surfaces t ereof withthe liquid; and horizon tally discharging" and oppositely-arranged liquid spraymg and atomizing nozzles 30,

31,located at opposite sidesjof the path of the containers and directing spray radially with respect to the conveyer to thoroughly coat and impregnate the exterior vertical surfaces'of the containers with the liquid. These several spraying heads or nozzles are 32, and are supplied with liquid under pres sure bybranch pipes from the liquid supply pipe 33, forming the discharge pipe of any suitable pump 34, arranged to draw liquid provided with regulatlng and cutoff "valves from tank 1, and drivethe same under the desired pressure through said pipesgto the several'nozzles. In the example illustrated, the pump -34:

is shown submerged in the liquid in the tank and is actuatedby sprocket chain 35, from shaft '36, extending to the exterior of the tank and driven by belt applied to pulley 37.

The nozzles 31 are usually spaced a distance from the containers toward the center of the casing, while the nozzles 30, are spaced a distance outwardly from the containers beyond the circle in which they travel. The casingis formed with a narrow offset recess or pocket 38, to receive the nozzles 30, and this pocket is usually provided with a removable cover 39, through which access can be gained to said nozzles 28 and 29, and the interior of the spraying chamber. Access to the nozzles 31, can be gained through an opening suchas 26, in one of the partitions 26, from the interior of. the casing on the removal of one of the top sections 6. The pocket 38, is normally closed, except at its inner end, where the pocket opens directly into the spraying chamber,

and the floor of the pocket is preferably arranged to drain onto the casing floor 5, that drains into the tank. The various nozzles are so arranged as to completely and successively envelop the containers in a cloud or fog of spray or atomized liquid, and a cloud or fog of atomized water proofing liquid is approximately present in and around the containers so long as they remain in the spraying chamber even while not in direct alinement with the nozzles and hence the containers are subjected to the soaking efi'ect of this fog or cloud for a more or less extended period while in said chamber; that is, for a greater length of time than it takes each container to pass the position wherein a it is in direct alinement with the nozzles.

The nozzles 30, 31, are usually arranged somewhat remote from the path traveled by the containers so that the spray will'be fully atomized by the time it reaches the. containers and will deposit the atoms of liquid throughout the full length of the containers and produce the'fog or cloud of vapor that will in effect completely envelop the contain-' ers and soak or penetrate the surfaces thereof without resulting in uneven deposit thereon and particularly avoiding the deposit of lumpsof paraffining or waterproofing mate-- rial.

The upper nozzle 28, is usually arranged somewhat closer to the containers than the nozzles 30 and 31, so as to deposit an ample supply of waterproofing liquid on the upper ends of the containers to fill the. seams or joints between the container bottoms and side walls thereof and if so desired, to spray downwardly along the exterior sides of the containers. The lower nozzle 29, is also usually arranged somewhat close to the lower vends of the containers so that the, spray therefrom will thoroughly saturate the complete inner surfaces of the containers ample illustrated, I show an air blastnozzle- 40, depending in the spraying chamber above the path traveled by the articles a, and arranged in advance (in the. direction of rotation of the conveyor) of the point where the containers pass between and in alinement with the spraying nozzles. This nozzle is arranged to direct a downward blast of air into said end pocket of each article a, to expel the surplus liquid therefrom into the spraying chamber. also serves to hasten the setting and drying of the liquid soaked and impregnated. surfaces of said pocket. This air blast nozzle is supplied through air pipe 41, depending through the top wall of the casing, and operatively connected through a suitable valve mechanism with main air supply pipe 42,

having cut off valve 43, and extending from any suitable air compressor. The valvemechanism referred to is erably arranged to normally maintain the pipe 41, cut off from the supply pipe 42, and to only periodically connect the pipe 41, with supply pipe 42, and hence only periodically permit the discharge of the ai-r blast through nozzle 40; The valve mechanism is so timed that the air blast will be but ap- This .air blast prefproximately momentarily established and y then only when a container (or other article being treated) is located immediately below the blast nozzle 40. The arrangement is such that each container passing under the nozzle 40, will be subjected to the momentary air blast, the air blastbeing cut off while each article is moving to and from position in immediate alinement with the nozzle. Various valves or other mechanisms can be provided to thus control theair blast, although in the example illustrated, I show the same timed and controlled by a rotary flat faced disk-like valve 44, rotating between and in closing contact'with the alined otherwise open communicating ends of the pipes 42,41. This'disk is provided with ,a

transverse port 45,- adapted to register with said open ends of the pipes and place them in open communication once during each rotation of, the disk, but to cut the pipe 41, off from communication ,with the supply pipe 42, during .the'remainder of each rotation. The rotary diske ltis carried and poweror drive shaft 13, andfthe gearing 47,

- so times the rotation; ofthe'f'disk 44:, as to establishthe airiblast only when firrthe rota tionl ofthe conveyenfeach article is directly -belowthejblastf nozzle. a

- .air tight contact between the end? edges'of the open' ends of. the-pipes 42, 41,'and the 7 InYorder. "to maintain the approximately side faces, of the disk, I preferably-grind said edges and .the faces of the disk,*and

yieldingly. press the pipe ends to the faces'of the disk. For instance, the pi'pes ll, 42, can be arranged with two approximately-'parah oppositealined open pipe ends 4 8,arranged at 'oppositesides of the disk 'and"paral1el with its axis of rotation with theedges surf rounding their openings held against the.

sides of the disk by a retraetive spring-49, extendingbetw'een and 1 joined to said flexible pipe lengths and tending pull them" together.

The containers or. other articles being treated pass from'the sprayingpr water- I proofing chamber, to the interior of the easf ing, that-is shut off from the spraying chain her by the partitions 26,- and the conveyer floor 25, andthat' constitutes" the drying or setting chamber. i The liquid flowsdown-and 'evenly-dlstributes itselfover the container surfaces, and snrplnsliquid drains and drops there-.

from onto the casing'bottom 5, while the containers are in the spraying chambenand in fact possibly this may betaking place after the containers have passed from the spraying chamber intothe" drying chamber.

However, the containers have an extended path of movement through the drying chamber before they :reach thedischarge c, and while in said" chamber the surfaces of the containers, become suf ficiently dried and. set to be delii ered therefrom. -While in said chamber, the containers are subjected tothe heat'rising'from the? hot liquid in the tank 1, and" are protected 'from thefl-vapor'fog generated by the spraying nozzles. i As the containers successively arrive be side the discharge opening c, they'can be removed by hand from the brackets supporting them and from the casing, but. I-fprefer to automatically'discharge the waterproofed containers as the conveyer presents them one at a time besidesaid discharge opening, and

hence avoid contact with human hands, as

well as thepresenceo-f an operator. Various means can be provided for thusdis charglng the containers, althoughin the ex 7 ampleillustrated, I Intilize an air blast from an upwardly directed nozzle 50, arranged within the casingand opposite the. opening 0, and directly 'under the: path traveled *by the containers. eachlcontainer arrives overtlns nozzle, ana1rblast'1ssues therefrom" and enters the open lower end of the opening a, and preferably causes the same to drop open endup at, thef exterior of the casing and onto an-upwardly moving con veyer 52, forming the -travelingfloor of a" trough 53, in which the containers can be" "carried to anysuitable location [forstorage' lel spaced straight laterally fiexible lengths I I at right anglesgto the axis of rotation 'of the disk, and these lengths can terminate in two orfurtheroperations; i

The deflector 51,]is; preferably so arranged with respect to the path of the containers th gsing throughthe upper d of open} ing c, and adjustably and removably sup- Ported by a bracket 54, secured t thebx l 'of the casing.

The air blastnozzle 50, is preferably supplied .withair under pressure from pipe 41,

through the pipe 55,[which forms a branch of; pipe 41, and hence the-blast is periodi established'through disk 44,as hereinbefore described, sothatthe container dis charging blastf will be momentarily established only when a semi ar -moves into alinernent therewith, and" simultaneously with the establishment" of r the surplusliquid-expelling blast through nozzle 40, although my invention isnot so limited.

If so desired, theitraveling conveyer floor 52, can-be driven from shaft 13, throughthe medium of suitable pulleys and aconnecti ng belt and a shaft carryingthe lower drum-of the saidconveyen, v so (1 sired, aguard flange 56, can be pro vided within the casing immediately above the opening I), to protect the hand of the operator when placing containers on the brackets of "the rotary I conveyer, from hot waterproofing liquid; that might drop" from the topwall of the casing. I The continuous rotary t avel of the articles to be treated, can be around-ahorizontal axis, f so desired, instead of around a verticalla-Xis, and m'anyothervariations, modifications and rearrangements canbe resort ed tojw thout departing from the spirit and Fig. 5,1 diagrammatically and partially illustrate, an apparatus, wherein the rotary conveyer 18?, forthe articles a,to be treated 'by liquidifrom thetankgl is rnountedon 1 scope of my invention'as defined by the herelnafter recited cla1ms. For instance, in

and rotates about the horizontal axis 7, driven through the medium of anysuitable gearing, involving for instance, suitably driven shaft/'12", and gearing 10 The waterproofing liquid in tank 1, can be kept at the desired temperature by any suitable means, .such ,for instance, as hereinbefore ,veyer 18. on the studs, as to always hang vertically suggested indescribing tankl. An upright or vertically arranged box or casingB, is

mounted on the tank 1*, with its interior draining thereint o, and the vertically rotating: conveyer 18, is inclosed Within said casing, and carries the/articles a, ina verti cal circular path therein and between vari-. ous spraying nozzles 28, 29 30', 31, ar-

ranged as hereinbefore described, and supplied with liquid from the tank 1, as hereinbefore described. The continuously rotat- I ing conveyer 18, is provided-with inclined upright arms forv maintaining the containers, or other articles to be liquid treated, in upright inverted position as hereinbefore described. These arms inthe construction of Fig. 5, are preferably carried by weighted brackets. 20, hung from and rotatably mounted on horizontal studs 20", projecting laterally from the rim of the rotary con- These brackets are so mounted therefrom by gravity,- as the conveyer rotates, to maintain the containersa, in vertical position. v 1

Any suitable means ,(not shown) can be provided for automatically discharging the 35 containers from the arms after the containers have been waterproofe'd and dried, and also the casing is provided with an opening (not shown) through which the containers to be treated can be placed on the ner and outer surfaces exposed to receive sprayed or atomized liquid, and liquid spraying oratomizing devicesarranged for spraying both. the innerand outer surfaces of said articles with liquid as said articles are transported by said means.

r 2. In combination, means providing a chamber, heating meansfor said chamber, devices for maintaining a fog or cloud of, atomized liquid therein, and a conveyer pro vided with means for maintaining paper ma terial containers or the like in invertedposition for draining and with their exterior and interior surfaces exposed to said fog and for transporting said containers through said chamber I i i 3. In combination, a casing including I means providing a. chamber, devices for -malntainlng a fogor cloud of atomized waterproofing liquid in said chamber, and a table arranged in said casing and rotating on a'center axis and provided with an endless series of holders for receivingand continuously moving series of paper, material coni tainers or'the like .through said chamber and exposingthe surfaces thereof to .the waterproofing action of said atomized liquid and within saidcasing for draining.

4. In combination, a casing providing a chamber, devices for maintaining a fog or cloud of atomized aterproofingliquid said chamber, and .acontinuously rotating conveyer arranged within said v casing and provided with means for holding paper material articles and for passing the same through said-chamber and exposing the surfaces thereof to {said atomized liquid, said casing provided with adjacent inlet anddischarge openings to-said conveyer whereby a single operatorca'nsupply articles to said conveyer and observe the discharge of'articles therefrom.

5. In combination, means providing a liq uid spraying chamber-and a drying chamber, and a cont nuously moving conveyer provided with means for individually'holding paper containers and the like and for passing them successively through said spraying chamber and said drying chamber, said means providedwith a container inlet-opening to said conveyer and adjacent to' said spraying chamber, and also provided with a container discharge openingfrom said drying chamber and-adjacent to said inlet opening, substantially as described. I

6. In combination, a conveyer provided with devices for individually receiving and holding paper containers and the like in in verted position with their inner and outer surfaces exposed to the, action of liquid spraying devices, and spraying. nozzles to spray the interiors and theexteriorsof said containers. e r I 7. In combination, a continuously rotating endless conveyer provided'with an endless series of uniformly spaced individual paper material container holders, a casing in whlch said holders travel, heating means, and vertically and horizontally arranged liquid spraying devices for spraying said'containers, said means being arranged to heat the interior of said casing, substantially as described.

. 8. In combination, a liquidpot or tank,a casing arranged thereon and draining thereinto, means for heating said pot and the interior of said casing, liquid spraying devices. means to fo'rce'liquid from the tank and to. saiddevicesand an endless conveyer'within casing for transporting paper material and dry. 19.

containers or the like in said casing and through the spray delivered by said devices. 9. In combinatioma casing, liquid spraying devicesarrangedto deliver sprays .of

atomized waterproofing liquid ,or the {like in said casing,,meansto supply said devices with waterproofing liquid or the'like under" pressure,- means for maintaining said liquid in a. heated condition and for heating the interiorof said casing, and 'a conveyer for passing paper materialv containersandfthe like through said; sprays vand; thereafter along an extended path of movement within said casing for draining, said conveyer provided withanendless series of means for holding containers in vertical position.

10. In combination, liquid spraying devices, means for holding in inverted position and successivelypassing paper material c011 tainers or the like through the spray generated by said devices, a casing inclosing said means and the containers carried thereby,

and heating means for. said casing,

means andrthe casing providing anextende'd path of movement for the containersafter leaving said devices for draining and drying the containers.

ll r lncombinatlon, vertically and, horizontally ,directedliquid sprayer-s for sub- ,jecting the inner and outer surfaces of paper containers andthe like, to water-proofing liquid, and a continuously moving endless series of holders for said containers arranged to passthe containers individually within range of action aof said sprayers,.and having an extended path oflmovementbeyond the Sprayers for. allowing the containers to, drain 12. Means for holding containers individuallyin invertedposition with their open ends exposed, and mechanism for simultaneouslv spraying said, containers through their open. ends and at their outer surfaces with waterproofing material,'substantially as described.\ J .1

"13. In combinatiom means' for transporting containers along an extended path of movementand for holding the samein inverted position with their inner and outer surfaces exposed while being so transported, anddevices near the frontend of said path of movement for "spraying the innef and outer surfaces'ofsaidcontainers with waterproofing liquid or the like.

.14. In combination, a continuously mov- ,ing conveyer rotating around, a central axis too andprovidedwithan endless series of individual container holders, a casing providing a drying and draining chamber through which said holders travel, said casing having anijnlet opening for passage of containers to I said holders ,andan exit'opening adjacent to said inlet opening for discharge of containers from said holders and sprayingdevices] for subjecting the containerscarried bysaid holders to sprayed waterproofingliquid be-l fore saidfcontainers enter; said chamber.

2 15. In combinatiommeans for transporting paper material containers andthe like along @an extended path of movement while maintaining them inverted, spraying devices for subjecting said containers tofspray'ed waterproofing liquid. at the beginning of said'extended path ofmov'ement, means for heating said liquid, and ia casing in which said containers travel while being sprayed and which provides] a drying chamber through which said extended path Of'IIIOV G n I mentextends'. M e v 1 6."In combinatiommeans forholding in inverted position and transporting. paper material containers and the like along an extended path of movement, devices for.

spraying the containers with waterproofing liquid or the like While moving along said path, andmeans for expell ing surplus liquid from each container.

1 17.,111. combination,means transport-U ing paper material containers and the like,

means forspraying the innerand outer surfaces of; said containers with a waterproofing li 'uid while being transported and means or removing surplus liquid from the ends ofsu'ch containers, and transporting means holding the containers in rig P l f I draining. i

18. In combination, a rotary table for transporting paper material containers and the like, along an extended circular path of movementfand for holding said containers while being transported, means for subject ing said containers to Waterproofing liquid or the like while beingjtransported, a casing in which the table isinclosedhaving adjacent. container inlet and outlet openings,

and fmeans for, automatically and succes- 19. In combination, means forfltransportwhile being transported, devices for subjecting said "containers to [waterproofing liquid While being transported, and'xneans for directing, an upward air blast, into each container as it reaches the end of said path of movement to discharge said container from said transporting means. H

20. Incombjination, means for transporting papermaterial containers and thellike, alongfa fixed path--- of I movement and "for maintaining them loosely andby gravity in ri p shte t e i :Wh labe s t a sp t 1 means for treating said containers with" wa'terproofing liquid, and devices. forfauto-j "matically dischargin'g'said containersfrom 1 saidtransporting means as they'successively .130,

reach the end ofsaid path of movement and H provided for draining and dryingv th for delivering the same in reverse upright positions comprlsing'an air blast nozzle below said path of movement and acurved a deflector above said path of movement, substantially asv described. 7 21, In combination, meansf for'transporting containers along a fixed path of, movement and for maintaining them in vertical 10 inverted position while being transported, devices for treating the surfaces of said containers to liquid while being transported,

and an air blast devicearranged'above said path of movementfor directing a downward pelling surplus 7 thereof.

22; In combination, a rotating conveyer 'provided with an endless series ofjindividual paper container holders, and liquid spraying nozzles arranged above, below; and on opposite sides of the path traveled bysaid holders and arranged to directli'quid 25 spriays against the interiorand exterior side being transported by said conveyer;

23. In combination, a table rotating"' con-' tinuously about a fixed center and provided with an endless series of uniformly spaced container holders arranged beyond its periphery, and liquid spraying nozzles, ar-

ranged to direct liquidsprays into the path" traveled by the containers being transported by said holders, from approximately all directions to subject the completeinner and outer surfaces of each container to liquid spray.

a center axis and provided with a continua discharge opening for containers through the wall of said casing, andmeans providing a liquid treating chamber in said casing-and movement and through which said containers successively pass to be liquid treated 25. In combination, an open bottomicas-f ing having an inletopening, an adjacent discharge, a rotary convey'er provided with an endless series of individual container holders successively movable in said casing along anvextended circular path 'from'said inlet to said discharge, a liquid pot below said open bottom of the casing and said cirvcular path and means near the front end ofsaid path for subjecting the inner and outer surfaces of the advancing containers to liquid spray, the remainder of said path end surfaces of the containers while combination, an approximately am; 40 nular casing, atable rotating therein about 7 means for discharging liquid parafiin'vertically and horizontally'into said chamber tainers. 26.In combination, a liquid tank provided with means for heating the liquid I extended circular path of movement within 15 air blast against the top 'of each container" after it has been treatedto liquidifcrigcx liquid thetopends vtainers at said discharge, and) mechanism for spraying the surfacesofjsaid containers withliquidfromj said tank i'while" said containers are being, transported along said :path.

27. In combination, a casing having a container inlet and an adjacent container foutlet, a table rotating'about a center axis and provided with" an endless series of in-- dividual container holders carried thereby in an extended path in said casing from said 'inletto said outlet, means within said casing providing a liquid spraying chamber through which the front *portion of said -path extends to subject the containers ad- .vancingalong said path'to the spray in said chamber, and oppositely arranged nozzles i for spraying liquid in said chamber and enveloping the containers therein. 28. In apparatus for paraffining; paper containers and the like," a paraffin pot provided with heating means, an open-bottom casing over said pot, .a container conveyer in, saidcasing and rotating on a center axis, saidcasinghaving an inlet and an adjacent outlet, nozzles, and a pump for driving the liquid para flin from the pot and discharging the'same through said nozzles onto containers carried by said conveyer.

29. In apparatus for paraflining paper containers and the like, in combination, a Y

paraffin pot provided with heating means, arranged near the beginning of said path of a casing forming a chamber over said pot,

in the form of spray and for drawing said paraflin from said pot, and holders for maintainingcontainers in the casing with theirinner and outer surfaces exposed'and subject to said spray.

3 0. In apparatus for I paraflining paper containers and the like, in combination, means for discharging hot liquid paraifin vertically and horizontally inthe form of spray, ,andmechanism for conveying paper containers through said spray and exposing the inner and outer surfaces thereof to said spray While said containers are held vertically for draining.

31. In apparatus for paraflining paper containers and the like, in combination, means for discharging hot liquid paraffin in the form of spray over the complete inner and outer surfaces of containers, and

- mechanisms for conveying papercontainers subjecting surfacesof said conta ners to an air blast, and valve mechanism for periodically establishing and cutting ofi said air blast. I

33. In apparatus for treating the surfaces of paper containers and the like with liquid, in combination, a constantly rotatingconveyer provided with uniformly spaced container holders, means for treating the surfaces of the containers with liquid while the containers are being advanced by said con-' veyer, air blast nozzles arranged above and below the path along which said conveyers move, and automatic valve mechanism for periodically and simultaneously directing air blasts through said nozzles and against said conveyers.

In testimony whereof I alfix my signature in the presence of two witnesses.

WILBUR L. WRIGHT.

Witnesses:

HOWARD G. BISHOP, 7 WM. R. LENDERKING. 

